Preprint
Oct 2026
Efficient localised model reduction for multiscale PDEs via Grassmannian interpolation
A geometric interpolation approach within the multiscale generalized finite element method (MS-GFEM) that targets the most expensive component: computing parameter-dependent optimal local approximation spaces and inherits the nearly exponential spatial convergence of MS-GFEM and the parametric convergence rates of spar...
C. Alber, Markus Bachmayr, Robert Scheichl et al.
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